1 definition by watcher04

Top Definition
A mystery drug (of unknown nature and effect) given by one person to another, the former often using the latter as a guinea pig to test the drug's effects.

Especially refers to this scenario when the drug's post-ingestion effect is particularly debilitating, such as that of horse or elephant tranquilizer.
Someone gave her a white elephant, and now she's in the bathroom vomiting.

by watcher04 February 14, 2009

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